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FreeBSD : OpenSSL -- vulnerability in DSA signing (6f0529e2-2e82-11e6-b2ec-b499baebfeaf)

medium Nessus Plugin ID 91553

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The OpenSSL team reports :

Operations in the DSA signing algorithm should run in constant time in order to avoid side channel attacks. A flaw in the OpenSSL DSA implementation means that a non-constant time codepath is followed for certain operations. This has been demonstrated through a cache-timing attack to be sufficient for an attacker to recover the private DSA key.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?cbd4d1c8

http://www.nessus.org/u?cc9a51f4

Plugin Details

Severity: Medium

ID: 91553

File Name: freebsd_pkg_6f0529e22e8211e6b2ecb499baebfeaf.nasl

Version: 2.8

Type: local

Published: 6/10/2016

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:libressl, p-cpe:/a:freebsd:freebsd:libressl-devel, p-cpe:/a:freebsd:freebsd:openssl, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 6/9/2016

Vulnerability Publication Date: 6/9/2016

Reference Information

CVE: CVE-2016-2178